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We have performed ab initio calculations to determine the bonding character of the Al-terminated Al(111)/«-Al 2 O 3 (0001) interface. By using an optimized model in which all atomic coordinates were relaxed to their minimum energy positions, we have determined that Al-O bonds constitute the primary interfacial bonding interaction. Our electron localization, Mayer bond order, and Mulliken population analyses reveal that these bonds are very similar to the cation-anion bonds found in the bulkdoi:10.1557/proc-654-aa4.2.1 fatcat:ldqko2v4ancmzlqysktta6vtry